docs: fix typo in en/browserslist.mdx

[Timeless0911]

Summary

fix typo in en/browserslist.mdx

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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[Copilot]

Pull Request Overview

Fixes a formatting typo in the Browserslist documentation for the web target.

• Correct backtick placement around output.target and web in the descriptive sentence.

[chenjiahan]

👍